. >> up next, author scott faris studies inga arvid. >> inga arvad was one of the most alluring women to walk the earth. a very beautiful woman, miss denmark of 1931. but even as pretty as she appears in these photographs people who knew her said no photograph ever did he justice. you had to see her in person. she apparently had extraordinary charisma and she had a way about her that she would take over a room when she would walk into it, turn heads and that why she was such an interesting pairing with kennedy who was good looking man with a lot of charisma. but it wasn't just her looks. she was as a very accomplished person, very bright, she poke four languages like native, english, danish, french, and german, but especially fluent in listening. a marv -- marvelous ability to draw people out and talk about themselves. inning gays mentioned in almost all the kennedy buying a grandfathers since the -- biographs, when they dated at the beginning of world war ii met in october 1941. inga was still married to her second husband. that was the reason for them to be discreet about their rela